Declension table of ?reyivas

Masculine	Singular	Dual	Plural
Nominative	reyivān	reyivāṃsau	reyivāṃsaḥ
Vocative	reyivan	reyivāṃsau	reyivāṃsaḥ
Accusative	reyivāṃsam	reyivāṃsau	reyuṣaḥ
Instrumental	reyuṣā	reyivadbhyām	reyivadbhiḥ
Dative	reyuṣe	reyivadbhyām	reyivadbhyaḥ
Ablative	reyuṣaḥ	reyivadbhyām	reyivadbhyaḥ
Genitive	reyuṣaḥ	reyuṣoḥ	reyuṣām
Locative	reyuṣi	reyuṣoḥ	reyivatsu

Compound reyivat -

Adverb -reyivas